Question 3 of 10 Submit The Kp for the reaction A (g) = 2B (g) is...
Question 8 of 10 Submit For the reaction below, Kc = 1.10 x 10-4. What is the equilibrium concentration of C if the reaction begins with 0.200 MA and 0.750 MB? 2 A (aq) + B (aq) = C (aq) 123 +/- 0 x 100 Tap here or pull up for additional resources
Question 2 of 10 Submit What is the pH of a 9.3 x 10-6 M KOH solution? 1 2 3 +/- 0 x100 x 100 Tap here or pull up for additional resources
Question 5 of 10 Submit What is the solubility of MgCO, in water? (Ksp of MgCO, is 3.5 x 10-) M 1 2 3 +/- 0 x 100 Tap here or pull up for additional resources
Question 10 of 23 Submit What is the mass of 15.00 L of propane vapor (C3H8) at STP? (1 2 3 +/- 0 x 100 Tap here or pull up for additional resources
Question 4 of 10 Submit What is the pH of a 0.0560 M solution of hydrocyanic acid, HCN (Ka = 4.9 x 10-10)? 1 2 3 +/- 0 x 100 Tap here or pull up for additional resources
Question 39 of 42 Submit A particular vitamin's chemical formula has one cobalt atom. What is the molar mass of the vitamin if it contains 4.34% cobalt? g/mol 3 X 7 8 9 +/- x 100 Tap here or pull up for additional resources Question 40 of 42 Submit What is the mass percent of water in zinc(II) nitrate hexahydrate? % 2 X 8 9 +/- x 100 Tap here or pull up for additional resources Question 41 of 42...
Question 8 of 10 Submit What is the concentration of a solution made with 0.450 moles of KOH in 400.0 mL of solution? 1 2 3 +/- x 100 Tap here or pull up for additional resources
Question 3 of 9 Submit What is the energy of a mole of photons that have a wavelength of 701 nm? (n = 6.626 x 10-34 J.S and c = 3.00 x 108 m/s) 1 2 3 +/- 0 x 100 Tap here or pull up for additional resources
Question 16 of 20 Submit Calculate the mass percent by volume of 42.6 g of glucose (C6H12O6, MM = 180.2 g/mol) in 325 mL of solution. 1 4 2 2 3 3 5 6 + x 100 Tap here or pull up for additional resources
Question 14 of 14 Submit Using the provided table, determine the enthalpy for the reaction 2 NHs (g) 3 N2O (g) - 4 N2 (g) +3 H2O (I) Днғ (kJ/mo) Substance NH3 (g) -46.2 N2O (g) 81.6 N2 (g) 0 НаО () -285.8 kJ/mol х 1 2 4 5 6 с 7 8 +- 0 x 100 Tap here or pull up for additional resources 32